Malware Analysis Report

2024-11-13 14:22

Sample ID 241108-l2d84a1ajb
Target bc13735eaf000b1a233a480fd71262aeefc067b695a50178b9cf1390565a5eebN
SHA256 bc13735eaf000b1a233a480fd71262aeefc067b695a50178b9cf1390565a5eeb
Tags
44caliber spyware stealer
score
10/10

Table of Contents

Analysis Overview

MITRE ATT&CK

Enterprise Matrix V15

Analysis: static1

Detonation Overview

Signatures

Analysis: behavioral1

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis: behavioral2

Detonation Overview

Command Line

Signatures

Processes

Network

Files

Analysis Overview

score
10/10

SHA256

bc13735eaf000b1a233a480fd71262aeefc067b695a50178b9cf1390565a5eeb

Threat Level: Known bad

The file bc13735eaf000b1a233a480fd71262aeefc067b695a50178b9cf1390565a5eebN was found to be: Known bad.

Malicious Activity Summary

44caliber spyware stealer

44Caliber

44caliber family

44Caliber family

Reads user/profile data of web browsers

Accesses cryptocurrency files/wallets, possible credential harvesting

Looks up external IP address via web service

Unsigned PE

Suspicious behavior: EnumeratesProcesses

Suspicious use of AdjustPrivilegeToken

Suspicious use of WriteProcessMemory

MITRE ATT&CK

Analysis: static1

Detonation Overview

Reported

2024-11-08 10:01

Signatures

44caliber family

44caliber

Unsigned PE

Description Indicator Process Target
N/A N/A N/A N/A

Analysis: behavioral1

Detonation Overview

Submitted

2024-11-08 10:01

Reported

2024-11-08 10:03

Platform

win7-20240903-en

Max time kernel

15s

Max time network

16s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bc13735eaf000b1a233a480fd71262aeefc067b695a50178b9cf1390565a5eebN.exe"

Signatures

44Caliber

stealer 44caliber

44Caliber family

44caliber

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bc13735eaf000b1a233a480fd71262aeefc067b695a50178b9cf1390565a5eebN.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\bc13735eaf000b1a233a480fd71262aeefc067b695a50178b9cf1390565a5eebN.exe

"C:\Users\Admin\AppData\Local\Temp\bc13735eaf000b1a233a480fd71262aeefc067b695a50178b9cf1390565a5eebN.exe"

C:\Windows\system32\WerFault.exe

C:\Windows\system32\WerFault.exe -u -p 2512 -s 1188

Network

N/A

Files

memory/2512-0-0x000007FEF5493000-0x000007FEF5494000-memory.dmp

memory/2512-1-0x00000000008D0000-0x0000000000922000-memory.dmp

memory/2512-20-0x000007FEF5490000-0x000007FEF5E7C000-memory.dmp

memory/2512-21-0x000007FEF5490000-0x000007FEF5E7C000-memory.dmp

Analysis: behavioral2

Detonation Overview

Submitted

2024-11-08 10:01

Reported

2024-11-08 10:03

Platform

win10v2004-20241007-en

Max time kernel

95s

Max time network

100s

Command Line

"C:\Users\Admin\AppData\Local\Temp\bc13735eaf000b1a233a480fd71262aeefc067b695a50178b9cf1390565a5eebN.exe"

Signatures

44Caliber

stealer 44caliber

44Caliber family

44caliber

Reads user/profile data of web browsers

spyware stealer

Accesses cryptocurrency files/wallets, possible credential harvesting

spyware

Looks up external IP address via web service

Description Indicator Process Target
N/A freegeoip.app N/A N/A
N/A freegeoip.app N/A N/A

Suspicious use of AdjustPrivilegeToken

Description Indicator Process Target
Token: SeDebugPrivilege N/A C:\Users\Admin\AppData\Local\Temp\bc13735eaf000b1a233a480fd71262aeefc067b695a50178b9cf1390565a5eebN.exe N/A

Processes

C:\Users\Admin\AppData\Local\Temp\bc13735eaf000b1a233a480fd71262aeefc067b695a50178b9cf1390565a5eebN.exe

"C:\Users\Admin\AppData\Local\Temp\bc13735eaf000b1a233a480fd71262aeefc067b695a50178b9cf1390565a5eebN.exe"

Network

Country Destination Domain Proto
US 8.8.8.8:53 freegeoip.app udp
US 104.21.73.97:443 freegeoip.app tcp
US 8.8.8.8:53 ipbase.com udp
US 172.67.209.71:443 ipbase.com tcp
US 8.8.8.8:53 97.73.21.104.in-addr.arpa udp
US 8.8.8.8:53 209.205.72.20.in-addr.arpa udp
US 8.8.8.8:53 71.209.67.172.in-addr.arpa udp
US 8.8.8.8:53 172.210.232.199.in-addr.arpa udp
US 8.8.8.8:53 138.32.126.40.in-addr.arpa udp
US 8.8.8.8:53 95.221.229.192.in-addr.arpa udp
US 8.8.8.8:53 56.163.245.4.in-addr.arpa udp
US 8.8.8.8:53 198.187.3.20.in-addr.arpa udp
US 8.8.8.8:53 107.209.201.84.in-addr.arpa udp
US 8.8.8.8:53 14.227.111.52.in-addr.arpa udp

Files

memory/364-0-0x00007FFA8A943000-0x00007FFA8A945000-memory.dmp

memory/364-1-0x00000154037E0000-0x0000015403832000-memory.dmp

memory/364-31-0x00007FFA8A940000-0x00007FFA8B401000-memory.dmp

memory/364-32-0x00007FFA8A940000-0x00007FFA8B401000-memory.dmp